Machine for cutting scores around ships&#39; tackle blocks and dead eyes



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THOMAS BLANCHARD, OF NEW YORK, N. Y.

Specification of Letters Patent No. 8, dated August 10, 1836.

To all whom t may concern Be it known that I, THOMAS BLANCHARD, late ofSpringfield, in the county of-Hampden and State of Massachusetts, butnow of the city, county, and State of New York, have made, invented, andapplied to use certain new and useful improvements in machinery adaptedto cutting the scores or hollows for the reception of the rope or ironbands around ships tackle-blocks and Vdead-eyes, and that the saidimprovements Vare fully set forth in the following description and inthe accompanying drawing forming a part of this specification, in which-Figure l, is an horizontal plan ;v Fig. 2, is a vertical frontelevation, and Fig. 3, is a vertical cross section of the machine inwhich the same letters, figures of reference are used to denote thesimilar parts in all the different figures.

A, A, A, A, are four feet supporting the standards B, B, to which isattached the frame C, this is fitted to receive the friction wheel D, atone end, this 'friction wheel is fitted to be raised or lowered by thethumb screws Z), b, which` work into, and/ raise, or depress thebearings a, a, on which the wheel revolves. At the other end of theframe C, the revolving cutter wheel E, set on the arbor c, and havingthe hooked knives, or cutters d, d, a?, ai, secured to it, these cuttersare made removable to give place to larger, or smaller, or dierent num-,bers as required, e is a pulley which gives motion to this wheel. Theupper partof the standards B, B, are elongated, and curved back toreceive center screws f, f, going through them to support the swingingframe g. Over the friction wheel, and upon the swing frame in bearingsh, L, is the arbor t', to which at one end is fit-ted the large handwheel K, for the workman'to turn the arbor by, attached to the arbor,and nearly over the friction wheel D, is the flange Z, against which,and directiy over the friction wheel is the shifting form board on whichis formed to regulate the depth, and shape of the score to be cut. Onthe end of the arbor z', and near by the cutting wheel E, is thecrosshead n, made with slots to secure, and adjust the holders, or tongsO, O, made with one straight, and one pointed arm, and in front of thecrosshead, is the gage stop p, and the back of the swing frame. On thelever tongs o, o, into the two sister holes t, t, for

thelaniard of the dead eye shown in the detached Fig. 4, and pushes themthrough until it stops against the page stop p, and vby compressing thetwo arms of the tongs in one hand, he forces the iiange s, on thejointed arm to hold the dead eye, or block firm, he then by they otherhand depresses the spring frame, and allows the cutters to cut into thedead eye untilthe form boardm, comes in kcontact with the friction wheelD. He then by means of the band wheel K, turns the arbor, and tongs, anddead eye together causing the cutters d, CZ, to cut the score aroundthat part of the dea-d eye which is with the grain of the wood, the formboard being made so as toy raise the swing frame when the cutters comeagainst the grain. He then removes the dead eye from the tongs 0, andturns it around, and puts it on again with the other side of the stop p,and repeating the above described motion cuts the remainder of thescore, then removes it to make way for others to be operated on in'asimilar manner. When it is desired to cut the score around a shipstackle block, a form on the same principle, but different in shape isused, and the block is held on the same sort of tongs which go throughthe` mortise of the block, and the operation of scoring is performedexactly in the same manner as that already described for dead eyes. Y

hereby declare that I claim as my invention, and improvement in theinode of scoring ships tackle blocks, and dead eyes- The dead eye orblockbeing held in a proper position by a tongs, having one fixed arm,and one pointed arm, and iianch, the f And I, the said THoMAs BLANCHARDdo i motions, in which the cutters operate with much cheaper, and muchbetter than in any the Vgratin of the wood on all sides of the othermode heretofore known to the subblock, or dead eye therein effectingthis porscriber. tion of the Work in making a block, or dead THOS.BLANCHARD.

5 eye in a manner differing from any other Witnesses:

manner known or used in any other machine, S. P. STAPLES,

and whereby a block, or dead eye is made C. S. SHERMER.

